One year after the historic tornado outbreak of April 27-28, 2011, researchers say they've learned a few things about deadly twisters. Today's story from Science@NASA presents some of the scientific findings that emerged from the swath of destruction.

With NASA's Kepler spacecraft discovering alien worlds at a record pace, it seems to be just a matter of time before an Earth-sized planet is found in the "Goldilocks zone"--that is, in an orbit sized just right for liquid water and life. In today's story from Science@NASA, researchers discuss how they'll explore a cousin of Earth many light years away.

A flurry of solar activity in early March dumped enough heat in Earth's upper atmosphere to power every residence in New York City for two years. The heat has since dissipated, but there's more to come as the solar cycle intensifies.